Measuring and testing – Volume or rate of flow – By measuring transit time of tracer or tag
Patent
1978-11-07
1980-12-23
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
By measuring transit time of tracer or tag
73239, G01F 1104
Patent
active
042402913
ABSTRACT:
A flow meter is provided for measuring the flow rate of fluid through a conduit having an inlet and an outlet, which includes a measuring chamber having a float disposed therein for movement in response to fluid flow, and a detector for detecting the movement of the float in the measuring chamber. Various devices are provided for controlling the path of fluid flow from the conduit outlet to the conduit inlet, which includes apparatus for allowing fluid to flow from the outlet through the measuring chamber in a first direction so as to move the float in the first direction past the detector, and for also allowing fluid to flow from the outlet through the measuring chamber in a second direction so as to move the float in the second direction past the detector. Apparatus is connected to the detector for measuring the rate of fluid flow in response to the movement of the float in the first and second directions.
REFERENCES:
patent: 1799875 (1931-04-01), Thompson
patent: 2772664 (1956-12-01), Jones et al.
patent: 3344667 (1967-10-01), Malby
patent: 3657925 (1972-04-01), Gross
patent: 3662598 (1972-05-01), Spencer
patent: 4089220 (1978-05-01), Houlberg
patent: 4118980 (1977-10-01), Debeaux
Andersson Roland J. E.
Olsson Lars-Goran
Paulsson Bengt G.
Gambro AB
Goldstein Herbert
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